Vocabulary
Simple Past Tense
Science
Social Studies
Math
100

made or manufactured

produced

100

want

wanted

100

The first step in the engineering design process is to ______ the problem.

define

100

In many countries, people raise crops and ______ for food.


livestock

100

A _____ compares amounts.


ratio

200

increased suddenly

surged

200

try

tried

200

An engineer _______ information to choose a solution.

evaluates

200

Famine is widespread ________.


starvation

200

You can represent a unit rate on a _________.

DOUBLE

graph, number line, or table

300

needed for a particular reason

DOUBLE

required

300

enjoy

enjoyed

300

Engineers make a ________ and test it to see how well it works.

prototype

300

In 2001, ______ ruined the maize crops in Malawi.

DOUBLE

flooding

300

A __________ shows how much of one quantity there is for one unit of another quantity.

unit rate

400

moved backward and forward or from side to side

swayed

400

shake


shook

400

Make changes to improve the __________.

solution

400

The flooding in Malawi had serious ________.


consequences

400

If a windmill generates 8 kilowatts per hour, how many kilowatts generate in 7 hours?

56 kilowatts

500

a machine that converts mechanical energy into electricity

generator

500

think

thought

500

The engineering design process ______ when the solution works as planned.

end

500

Both war and weather can cause ________.


famine

500

If a windmill generates 8 kilowatts per hour, how many minutes does it take to generate 24 kilowatts?

180 minutes